Wow dk! Our 4k sounds like a jackhammer when standing beside the RV. When I leave it running (for exercise) I can clearly hear it inside the house over 75 feet away. It's a lot noisier than the tandem Champion 2000w inverter generators I used to use.
It's reasonable inside the coach... probably because the roar of the AC drowns out the genny noise. Fortunately we haven't boondocked much in the summer heat... we like those cool nights with the windows and vents open... peace and quiet.
__________________
|